Specifications

Configuration MP.11 5054 (MP.11a) Installation and Management
Network Parameters
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Routing Mode
If the device is configured in Routing mode, both Ethernet and Wireless interfaces require an IP address. The following
screen is displayed:
Configure or view the following parameters:
• IP Address Ethernet Port: The unit’s Ethernet IP address. The default is 10.0.0.1.
• Subnet Mask Ethernet Port: The unit’s Ethernet IP address subnet mask.The default is 255.255.255.0.
• IP Address Wireless Slot A: The unit’s wireless IP address. The default is 10.0.0.1.
• Subnet Mask Wireless Slot A: The unit’s wireless IP address subnet mask.
• Default Router IP Address: The router’s IP address.
• Default TTL: The default time-to-live value.
• Management Interface: The interface used to manage the device. Select Ethernet, Wireless, or Auto.
Roaming
Roaming Overview
Roaming is a feature by which an SU terminates the session with the current BSU and starts the registration procedure
with another BSU when it finds the quality of the other BSU to be better. Roaming provides MAC level connectivity to the
SU that roams from one BSU to another. Roaming takes place across the range of frequencies that are available per
configuration. The current release offers handoff times of up to a maximum of 80 ms. This is fast enough to allow the SU
to seamlessly roam from one BSU to the other therefore supporting session persistence for delay-sensitive applications.
The feature also functions as BSU backup in case the current BSU fails or becomes unavailable.
The Roaming feature lets the SU monitor local SNR and data rate for all frames received from the current BSU. As long
as the average local SNR for the current BSU is greater than the slow scanning threshold, and the number of
retransmitted frames is greater than the slow scanning threshold given in percentage, the SU does not scan other
channels for a better BSU.
•The normal scanning procedure starts when the average local SNR for the current BSU is less than or equal to the
slow scanning threshold and the number of retransmitted frames is greater than the slow scanning threshold given in
percentage. During the normal scanning procedure the SU scans the whole list of active channels while maintaining
the current session uninterrupted.
• Fast scanning is the scanning procedure performed when the average local SNR for the current BSU is very low
(below the fast scanning threshold) and the number of retransmitted frames is greater than the fast scanning
retransmission threshold given in%, so that the current session should terminate as soon as possible. During this
procedure, the SU scans other active channels as fast as possible.